carricaburu



(No Model.) I I 2 Sheets-Sheet 1. L. B; UARRICABURU. FEED WATER HEATER0E GQNDENSEE.

No. 559,674. Patented'May 5, 1896.

W KW ANDREW B GRMAMPHOTULATMQ WASHINGIO'LDC 2 Sheets-Sheet 2.

(No Model.)

L. B. GARRIOABURIL FEED WATER HEATER 0R GONDENSER.

Patented May 5,1896.

maRzw B GRAHAM Pumu-umnwnsmusmu nc UNITED STATES PATENT OFFICE.

LEON .l CARRIGABURU, OF NEV YORK, N. Y.

FEED-WATER HEATER OR CONDENSER.

SPECIlFICATION forming part of Letters Patent No. 559,674, dated May 5,1896.

Application filed February 17, 1896. Serial No. 579,504. (NO model.)

To aZZ 1071 0720 it may concern:

Be it known that I, LEON B. OARRICABURU, a citizen of the United States,residing at New York city, in the county and State of New York, haveinvented an Improvement in Feedater Heaters or Condensers, of which thefollowing is a specification.

This invention relates to the combination of an outer and inner case andcrossing pipes, as hereinafter described, and it is adapted to use as afeed-water heater or as a condenser.

In my improvements the short tubes are at alternate oppositeinclinations, so that the fluid will pass in at one end and rapidlycirculate through and discharge at the other cud. In some instances thewater is within the tubes and the steam around them, or the steam iscaused to pass through the tubes and the water surrounds the same.

I will now proceed to describe the general features of the apparatus,and then the manner in which it may be employed either as acondenser ora feed-water heater.

In the drawings, Figure 1 is a partial section of the apparatus whenplaced vertically and adapted to use as a feed-water heater. Fig. 2 is asimilar View of the apparatus when placed horizontally and adapted touse as a condenser, and Fig. 3 is a cross-section at the line 3 3.

The external case A is advantageously cylindrical and provided with endflanges 4, and there are openings into this cylinder at 5 and 6, andthese are usually and advantageously at opposite sides, and within theexternal case A is an internal polygonal case B, which is preferablysquare, and across through the internal case B are the ranges of tubes 0and D opening through such case, and one range of tubes 0 is at theopposite inclination to the other range of tubes D, as illustrated inFig. 3, so that the fluid passing along through the case B impinges uponthe ranges of tubes, and the one range being in the opposite directionto the other range insures the most intimate contact of the fluid withthe surfaces of such tubes, so that there will be either a heating orcooling action eftected to the best advantage by such impingement.

It is advantageous to apply upon the surface of the case B ribs 7 forthe purpose of strengthening the flat sides of the internal case, andthese ribs are advantageously arcs of circles on theirexterior edges, sothat such edges are parallel with the internal surface of the externalcase A, the required space hein g left for the proper circulation of thefluid.

hen the devices before described are used in a condenser, the heads Fand G are advantageously fiat or nearly so, and water is admittedthrough the pipe 8 and the same escapes through the outlet '9. Hence thewater will circulate through the square internal case B, and in itspassage it will impinge upon the ranges of pipes C and D and take upfrom them heat, and there will be a very large area ofcondensing-surface in a small space, because the steam will be admittedthrough the open ing 5 and the water of condensation will be taken awayat the opening 6.

Should the connections be reversed, so that the steam passes through theinternal case B and the condensing-water between the internal case B andthe external case A, then the water of condensation should be taken awayby the pipe 10 at the bottom angle of the internal case, and this samepipe may be used in such condensers as are supplied withcondensing-water through the internal case for drawing cit suchcondensing-water when the condenser is to be cleaned or repaired; and itis usually advantageous to provide a pipe at 11 extending to arelief-Valve for preventing injury to the condenser by pressure in casethe supply of condensing-water may become obstructed.

hen this apparatus is used as a feed-water heater, it is sometimesadvantageously placed in a vertical position, with the supply-pipe 12 atthe bottom opening through the head F, which is formed as a cylindricalchamber, and sediment may be drawn off by the pipe 13, and the head G atthe upper end is advanta geously made similar to the head F, and thefeed-water passing in at the bottom of the heater becomes highly heatedby the action of the steam that is admitted at the opening 11 and passesin between the case A and the case B and passes through the ranges oftubes 0 D, and the water of condensation passes 0d at the opening 6, andescape-steam passes oft at the opening 5.

In some instances the ends of the case B are made with flanges to fitwithin the case A, as seen in Fig. 2, or such flanges may besufficiently large to come in between the flange of the cylindrical caseA and the flange of the head F, as seen in Fig. 1, the bolts passingthrough and connecting the respective parts.

If desired, the apparatus can be used in a vertical position, as shownin Fig. 1, for condensing purposes, in which instance the Water can beadmitted between the case A and the case B and pass through the tubes 0D and the steam be admitted into the upper head G and pass down as it iscondensed, the water of condensation passing away by the pipe 12, or theconnections may be made in the reverse manner, so that Water passesthrough the case 13 While the steam is around the same.

Where the flanges or ribs 7 are made Wider at one side than at the otherand alternate,

as illustrated at 14 by dotted lines, the fluid which is between thecase A and the case B can be made to travel first in one direction andthen in the other, so that the direction of circulation can be regulatedat will according to the position of the Wider flanges, which touch, ornearly so, the interior surface of the external case A.

I claim as my invention 1. The external cylindrical case A, having inletand outlet openings, in combination with the polygonal internal case,and the ranges of tubes passing perpendicularly through the same withone range crossing the other range and circular end flanges to thepolygonal case extending to and forming tight joints with the circularcase, substantially as specified.

2. The external cylindrical case in combination with the internalpolygonal case having ribs upon its surfaces, and ranges of tubes withtheir ends opening through the internal case and between the ribs andthe tubes in one range crossing the tubes in the other range, and headsat the ends of the cases. there being inlet and outlet openings for therespective fluids, substantially as set forth.

3. The external cylindrical case A, having inlet and outlet openings, incombination with the polygonal internal case, and the ranges of tubespassing perpendicularly through the same with one range crossing theother range, and circular end flanges to the polygonal case extending toand forming tight joints with the circular case, and end heads to theouter cylindrical case and connections thereto for the fluid passingthrough the polygonal case. substantially as specified.

4.. The combination in a condenser of an external cylindrical case withinlet and outlet openings, an internal square case and ranges of tubesopening through such internal case and standing at alternate oppositeinclinations, end heads and inlet and outlet pipes and a draw-off pipethrough one of the heads and in line or nearly so With the interiorbottom angle of the inner case for drawing 01f the liquid from suchinner case, substantially as set forth.

Signed by me this lath day of February.

L. B. OARRIOABURU.

WVitnesses:

GEO. T. PINGKNEY, S. T. HA'VILANI).

